P9221-R3 datasheet(7/46 Pages) RENESAS

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P9221-R3 Datasheet

October 20, 2017

Pins

Name

Type

Function

DEN

Input

Reserved. A10kΩ resistor must be connected between the DEN pin and the VDD18 pin.

D1, D2, D3,

D4, D5, D6

OUT

Output

Regulated output voltage pin. Connect two 10μF capacitors from this pin to GND. The

default voltage is set to 12V when the VOSET/Q-Fact pin is pulled up to the VDD18 pin

through a 10kΩ resister. For more information about the VOSET function, see section 8.2.

E1, E2, E5, E6,

F2, F3, F4, F5

VRECT

Output

Output voltage of the synchronous rectifier bridge. Connect three 10μF capacitors and a

0.1µF capacitor in parallel to GND. The rectifier voltage dynamically changes as the load

changes. For more information, see the typical waveforms in section 6.

VDD5V

Output

Internal 5V regulator output voltage for internal use. Connect a 1μF capacitor from this pin

to ground. Do not load the pin.

VDD18

Output

Internal 1.8V regulator output voltage. Connect a 1μF capacitor from this pin to ground.

Do not load the pin.

BST1

Output

Boost capacitor for driving the high-side switch of the internal rectifier. Connect a 15nF

capacitor from the AC1 pin to BST1.

G2, H1, H2,

AC1

Input

AC input power. Connect these pins to the resonant capacitance CS (C1, C2, C3, and C5

in Figure 28).

RSV3

Input

Reserved pin. This pin must be connected to the OUT pin. Do not leave this pin floating.

RSV1

–

Reserved for internal use. Do not connect.

G5, H5, H6

AC2

Input

AC input power. Connect these pins to the Rx coil (L1).

BST2

Output

Boost capacitor for driving the high-side switch of the internal rectifier. Connect a 15nF

capacitor from the AC2 pin to BST2.

RSV2

–

Reserved pin. This pin must be connected to the OUT pin. Do not leave this pin floating.

TS/EOC

Input

End-of-Charge (EOC) signal and remote temperature (TS) sensing for over-temperature

shutdown. For remote temperature sensing, connect to a negative temperature coefficient

(NTC) thermistor network. If not used, connect this pin to VDD18 pin through a 10kΩ

resistor. For EOC, connecting the pin to ground will send the End Power Transfer (EPT)

packet to the transmitter to terminate the power. For more information, refer to section 8.9.

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